You need to get your gas light fixed under warranty, they should definetly do that for you. In severe cases your window may need adjustment to reduce noise, some noise is always going to be there. The rear wing comes up at 100 kilometers, so it does not fall on 60 or 65, its german remember. Everything else you list is not a reasonable warranty request. You will be lucky to get real warranty issues fixed. Try to keep in mind that the things you are worried about will multiply every time you have the car worked on. You want them to do as little work as needed. The rattles and electrical problems will likely be created by them messing with your panels and guages. The gas light should definitely come on when you run low, but remember when they fix it you may create other problems like dash noises.